Am i wrong from ending the friendship?

this is a long story but im going to summarize it as best as i can. so i had a friend who i was close with at point and time but then he started to act different. He would cancel plans and go out with his girlfriend and pretty much do what ever he wanted. One time i cancelled plans and decided to go out with my girlfriend and he got so upset. going forward he would continue to cancel on me and thought that by doing so was valid. at times he wouldn't even pick up the phone when i called, this was his way of saying he didn't want to go. what really upset me was when he broke up with his girlfriend and started to befriend mine and allowed her to confide in him about our relationship and not even tell me what was said. he knew that my girlfriend was having sec thought about the relationship and not once told me. he would invite her out with his friends and she would do the same and i didn't even know and when i did find out and was angry neither cared and got made. during the ending of the relationship with me and my girlfriend she took his side. and again all the personal and private conversations and interations that were discussed with my girlfriend at the time he knew and he would judge me on this but i didn't even know he knew. I know because instead of telling me what was said he told my other good friend, and he would talk about me behind my back. there was this one time, me and him went out to an outing and with a bunch of ppl i did not know but he knew and he left me there with out even telling me. also money was lent and and when i asked for it back he said he didn't have it because he was extremly broke, but word around town was that he was making plans to go out on a trip and he was going out to eat and movies with other ppl. he would start to talk to me like im a lil kid and make it seem like everything was my fault. but i do admit some things were mine but either way he was never there as a friend because he befriend my girlfriend , now ex. and they are now still good friends even with him having a new girlfriend. pretty much we had an argument and i pretty much told him i didn't want to talk to him. he called and texted and i just never respond. we haven spoken for a week.friendships are up and down and you should be able to work things out, but he never thinks he's wrong and im tried of always giving in. i know im a guy and i shouldn't be as soft and sensitive as i am but i cant help it. what do you think?